Modern day Captain Crunch

Matthew Weigman — a fat, lonely blind kid who lived with his mom in a working-class neighborhood of East Boston. In person, Weigman was a shy and awkward teenager with a shaved head who spent his days holed up in his room, often talking for up to 20 hours a day on free telephone chat lines.

Like a comic-book villain transformed by a tragic accident, Weigman discovered at an early age that his acute hearing gave him superpowers on the telephone. He could impersonate any voice, memorize phone numbers by the sound of the buttons and decipher the inner workings of a phone system by the frequencies and clicks on a call, which he refers to as “songs.” The knowledge enabled him to hack into cellphones, order phone lines disconnected and even tap home phones.